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Finding the Fourth Proportional to 98,554.52, 147,842.09 and 45,237.40

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Solution

The fourth proportional to 98,554.52, 147,842.09 and 45,237.40 is: 67,860.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,554.52 : 147,842.09 = 45,237.40 : x
  2. Step 2: Convert to fraction form
    98,554.52/147,842.09 = 45,237.40/x
  3. Step 3: Cross multiply
    98,554.52x = 147,842.09 × 45,237.40
  4. Step 4: Simplify right side
    98,554.52x = 6,687,991,336.01
  5. Step 5: Solve for x
    x = 6,687,991,336.01/98,554.52
  6. Step 6: Final answer
    x = 67,860.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.